$ git clone -n https://src.fedoraproject.org/rpms/libcss.git /var/lib/mock/f42-build-883222-185146/root/chroot_tmpdir/scmroot/libcss
Cloning into '/var/lib/mock/f42-build-883222-185146/root/chroot_tmpdir/scmroot/libcss'...
$ git fetch origin e818578b835f500585e81b153e2791ae20c8ec3a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libcss
 * [new ref]         e818578b835f500585e81b153e2791ae20c8ec3a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e818578 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild